Bun-to-creatinine ratio

What is Bun-to-creatinine ratio?

BUN-to-creatinine ratio is the ratio of the blood urea nitrogen (BUN) (mg/dL) and serum creatinine (mg/dL) (Cr). The ratio may be used to determine the cause of acute kidney injury or dehydration.The principle that both urea (BUN) and creatinine are freely filtered by the glomerulus, however urea reabsorbed by tubules can be regulated whereas creatinine reabsorption remains the same.

Questions and answers on "Bun-to-creatinine ratio"

i am 50 year old female and healthy. had my annual labs done. everything very normal except serum creatine was 0.42 on lab report masked as low....

doctor1 MD

Brief Answer:
No need to get worried!

Detailed Answer:
Hi and thank you so much for this query.

Your results look good to me and am sure any other...

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Hello my blood creatinine, serum came back low 0.54 and the BUN/creatinine ration was high at 28. Everything else was perfect. Is there something...

doctor1 MD

Hi and thanks for the query

Creatinine is normally a breakdown product of the muscle. In muscle energy is stored as creatinine phosphate and this...

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My (14 yr old) daughter is adopted so we have no family history...She has complained for years about joint pain (a doctor ruled out some autoimmune...

doctor1 MD

Hello and thanks for your query.

I shall make an effort to provide you with good professional recommendations specific to your questions.

Let me...

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